Expansion joint anchor



March 14, 1933. I C BARTHOLET 1,900,895

'EXPANS ION JOINT ANCHOR Filed July 27, 1931 2 Sheets-Sheet 1 i 77y. 1. Y

/3 II I/\ Inventor "c7. C .Bariholei .14 llomey EXPANSION JOINT ANCHOR Filed July 27, 1931' 2 Sheets-Sheet 2 Invntor r7. aBariholef Patented Mar. 14, 1933 UNITED f STATES PATENT OFFICE JOHN C. BARTHOLET, 0F TACOMA, WASHINGTON EXPA SION Jonv'r ANCHOR iApp1ication filed'lhily 27, 1931. Serial No. 553,447.

A still furtherobject of the invention is to' provide means for holding an expansion joint material in place upon sub-grades or other 10 foundations, while placing and finishing concrete paving material and to the end that all parts of the bottom edge of the expansion joint may be maintained flush with the bot tom of the slab. i i

Other objects and advantages of the in-- 'vention will become apparent from a study of the following description, taken in connection with the accompanying drawings where- 1n:

Figure 1 is a top plan vew of an anchor, the same being shown as applied to an expansion'joint. v

Figure 2 is a side elevational view thereof.

Figure 3 is a perspective View of a base plate forming part of the anchor.

Figure 4 is a perspective view of a detachable cleat equipped post forming part of the anchor.

Figure 5 is a view similar to Figure '1 and illustrating a slightly modified form of the invention.

Figure 6 is a side elevational view of the structure shown in Figure 5.

Figure 7 is a perspective view of the modified form of anchor joint shown in Figures 5 and 6. i

' With reference more in detail to the drawings, it will be seen that in both forms of the invention, there is provided what may be termed a base plate 10 formed of metalor other suitable material.

In that form of the invention shown in Figures-1 to 4 inclusive, the plate is slotted longitudinally adjacent one end thereof, and at the inner end of the slot is bent upwardly at right angles on a transverse crease line whereby to provide a pair of posts 11, each of which at its upper end has a portion thereof bent inwardly and at right angles thereto and suitably cut and shaped to provide a pair of penetrating prongs 12. i

The plate 10 inwardly from the crease line, is slitted transversely and pressed upwardly to provide a retaining loop or guide 13. A

post 14 is integrally with and rises from one end of a relatively narrow base or plate member 15 that is slidable longitudinally of the plate 10 through the loop 13 for adjusting the post 14 relative to the posts 11. The

post 14 at its upper end has an end portion bent at right angles thereto and suitably sharpened to provide a pointed penetrating prong 16.

In using this form of the invention, the plate 10 is rested partly on the road bed, and the material of the expansion joint as used in road construction and indicated by the reference character 17 has a lower edge resting on the plate-1O and extends transversely of the plate between the'posts 11 and the loop 13. The posts 11 are urged inwardly toward one side of the joint 17 and the prongs thereof are pressed into the expansion joint material. The base or plate 15 is then slid longitudinally of the plate 10 toward the joint 17 and prong 16 forced into penetrating engagement with the joint 17 so that the same is now held against longitudinal lateral or vertical movement with respect'to the plate 10.

It will be apparent that the plate is resting on the surface of the bed, and extending inwardly from the joint toward the part of the road upon which the slab is about to be poured, the quantity of concrete is first poured on the bed and covering exposed portions of the plate 10 will, by reason of its weight serve to hold the anchor securely in place, insuring continuous contact between the sub-grade and the expansion joint material.

In that form of the invention shown in Figures 5 to 7, instead ofproviding a separable post, all the posts are integral with the base plate 10.

Thus referring particularly to Figure 7, it

will be seen that in this form of the invention,

the slot at one end of the plate extends inwardly beyond the transver se fold line, and

the material. between the longitudinal slits,

is then bent upwardly at the inner end of the slot to provide the post 14 having at its upper end the penetrating cleat 16, so that the joint will be received between the post 14 and the posts 11, and these posts being equipped wih prongs 12 in the same manner as the posts 11, the joint will be securely anchored between the posts in substantially the same manner as that described in detail relative to the first embodiment of the invention.

Even though I ha e herein shown and described the preferred embodiment of the invention, it is to be understotd that the same is susceptible of further changes, modifications and improvements coming within the scope of the appended claims.

Having thus described my invention, what I claim as new is:

1. An anchor for the purpose specified comprising a plate provided at one end with a pair of posts extending upwardly therefrom and bendable relative thereto, and a third post rising from the plate intermediate the ends of the plate and in staggered relation with respect to the first mentioned posts.

2. An anchor for expansion joints comprising a plate adapted to have the material of the joint extend transversely thereof, posts rising from the plate and being integral therewith for disposition on one side of the expansion joint, and a second post rising on said plate for movement toward and away from the opposite side of the expansion joint.

3. A joint for the purpose specified comprising a body member formed from a rectangular sheet of metal or the like slotted longitudinally adjacent one end, and having portions thereof at said end bent upwardly at substantially right angles, a sleeve formed on said plate inwardly from said upstanding portions, and a substantially L-shaped member having an end portion thereof slidable through said sleeve.

4. A joint for the purpose specified comprising a body member formed from a rectangular sheet of metal or the like slotted longitudinally adjacent one end, and having portions thereof at said end bent upwardly at substantially right angles, a sleeve formed on said plate inwardly from said upstanding portions, and a substantially L-shaped memher having an end portion thereof slidable through said sleeve, and penetrating prongs on the upper ends of said upstanding portions and the free end of said L-shaped member.

5. An expansion joint anchor, comprising a plate, a plurality of spaced vertical members adjacent one end of the plate forming supports for opposite sides of an expansion joint filler so arranged that two of the said members are at one side of the filler, and a single one of said members is at a relatively opposite side of the expansion joint filler.

6. An expansion joint anchor comprising a plate, a pair of relatively spaced vertical members adjacent one edge of the plate, and forming supports for one side of an expansion joint filler, a guide on the plate inwardly from said one edge, and a vertical member forming a support for the other side of the expansion joint filler and provided with a base slidably engaging said guide.

7. An expansion joint anchor comprising a plate, a fixed vertical member for the plate forming a support for one side of an expansion joint filler, a shiftable vertical member forming a support for the other side of said expansion joint filler, said plate having means engaging the shiftable member for locking it against vertical and angular movement.

8. An expansion joint anchor comprising a plate, a vertical member secured to the plate and forming a support for one side of the expansion joint, a second vertical member forming a supperu for a relatively opposite side of the expansion joint, and constrained to shift toward and away from the first-na1ned vertical member in a plane parallel to the plate, each of said vertical members being provided with means for insertion into and engagement with an expansion joint filler.

In testimony whereof I afiix my signature.

JOHN C. BARTHOLET. 

